KR102092413B1 - Seismic reinforcement vibration control device having double-plate intermediary damper - Google Patents

Abstract

The vibration isolating device according to the present invention is a vibration isolating device that is installed in the vertical direction to the yibangbo in the wall of the building consisting of a left and right pillars and the two beams, the vibration isolator, the upper steel plate wall, lower steel plate Wall and intermediate dampers; The upper steel sheet wall and the lower steel sheet wall are installed facing each other in a space between two pillars of the wall and an artificial beam with the intermediate damper interposed therebetween; The upper steel sheet wall and the lower steel sheet wall are formed of a structure of a double steel sheet composed of two steel sheets spaced at a predetermined interval, respectively, and a structure in which the intermediate damper can be inserted between predetermined intervals of the double steel sheet. .

Description

SEISMIC REINFORCEMENT VIBRATION CONTROL DEVICE HAVING DOUBLE-PLATE INTERMEDIARY DAMPER}

The present invention relates to a vibration damping device for seismic reinforcing using an intermediate damper, more specifically to a vibration damping device for seismic reinforcing using an intermediate damper composed of a double steel plate, and a seismic reinforcing method using the same and a structure reinforced by the method.

Seismic design is an earthquake-resistant design that improves durability to resist earthquake forces, seismic isolation technology that separates a building from the ground to move the building's vibration cycle away from the earthquake's excellent cycle, and various vibration damping devices. It refers to a technique that includes a vibration control technique that effectively dissipates by using.

In the case of Korea, according to the Ministry of Fire and Disaster Prevention, it was decided to promote earthquake-resistant reinforcement according to the priority for 4,3,437 public buildings that require earthquake-resistant reinforcement among the road facilities subject to earthquake-resistant design, and for this purpose, a budget of 4.5 trillion won in 2011-2015 The market size is expected to continue to grow as the importance of seismic reinforcement is emphasized in the future, including investment of 2.8 trillion won by 2020 due to early seismic reinforcement of public facilities.

Among the technologies related to the seismic reinforcement method, the seismic reinforcement technology can be divided into a frame structure for seismic, damper device for seismic, bearing device for seismic, steel material for seismic improvement, bridge structure for seismic, joint structure for seismic, and the present invention It can be broadly classified as being for an earthquake-resistant frame structure and an earthquake-resistant damper device.

On the other hand, due to the recent earthquakes of magnitude 5 and more in Korea and the Pohang earthquake, mid- and large-sized (over 6.0) earthquakes may occur at any time in the future. It has been suggested that it can cause

 On April 25, 2018, the Korea Institute of Geoscience and Mineral Resources (KIGAM) published a book titled "The Southeastern Earthquake on the Korean Peninsula for the Public", which contains the findings of the past two years and the results of the study of the Gyeongju and Pohang earthquake. More than 200 people whose homes were damaged by the Pohang earthquake were in shelter for nearly 9 months, and were judged to have little damage from their homes, and the residents were worried that they could not understand these decisions. Above all, there is growing mistrust of the reinforcement method that ensures the structural stability of the building, and it is necessary to clarify the performance.

In this regard, there is a great need for a new construction method that can dramatically improve the seismic reinforcement performance of domestic poor buildings. In particular, in addition to new buildings designed and constructed according to the recently strengthened design standards, the need for a seismic construction method capable of improving the strength of an aging or poorly constructed concrete structure is greatly increased.

Republic of Korea Registered Patent No. 10-1278136

The present invention is to provide a seismic structure and seismic construction method using the same, and a seismic device capable of reducing the seismic load due to its light weight and having enhanced ductility behavior, as an invention devised to solve the problems of the prior art described above.

In addition, the vibration damping device itself is intended to provide a vibration damping device capable of reinforcing the bending performance of the entire structure, and a seismic structure and a seismic construction method using the same.

The vibration isolating device according to the present invention is a vibration isolating device that is installed in the vertical direction to the yibangbo in the wall of the building consisting of a left and right pillars and the two beams, the vibration isolator, the upper steel plate wall, lower steel plate Wall and intermediate dampers; The upper steel sheet wall and the lower steel sheet wall are installed facing each other in a space between two pillars of the wall and an artificial beam with the intermediate damper interposed therebetween; The upper steel sheet wall and the lower steel sheet wall are formed of a structure of a double steel sheet composed of two steel sheets spaced at a predetermined interval, respectively, and a structure in which the intermediate damper can be inserted between predetermined intervals of the double steel sheet. .

In the vibration damping apparatus according to the present invention, the upper steel sheet wall and the lower steel sheet wall may be manufactured such that the intermediate damper is destroyed first when loaded by making the thickness and the stiffness greater than the intermediate damper.

In the damping apparatus according to the present invention, the intermediate damper is bolted between each of the predetermined intervals of the upper steel plate wall and the lower steel plate wall, and the design strength of the bolt connection portion is greater than the design strength of the intermediate damper. By doing so, before the deformation or yield or destruction of the intermediate damper, the bolt connection may be configured so as not to be deformed, yielded or destroyed.

In the vibration damping apparatus according to the present invention, the bolt uses a spring bolt to reinforce tearing due to stress concentration in the bolt connection portion, and the spring bolt is pre-stressed in advance so that it can serve as a buffer with the elastic force of the body. It can be made to be fixed and separated by the elastic force when the pressure is released.

In the vibration damping apparatus according to the present invention, a separate cushioning material may be installed at predetermined intervals between the upper steel sheet wall and the lower steel sheet wall, and the buffer material may be formed of rubber.

In the vibration damping apparatus according to the present invention, the installation position of the vibration damping apparatus may be installed at a point where the bending stress of the structure is maximized so as to increase the bending strength in the longitudinal direction of the structure.

In the vibration damping apparatus according to the present invention, the intermediate damper may be formed of an upper steel plate and a lower steel plate.

In the vibration damping apparatus according to the present invention, the upper steel sheet and the lower steel sheet of the intermediate damper are spaced apart at predetermined intervals, and a separate buffer may be installed at a predetermined distance between the upper steel sheet and the lower steel sheet of the intermediate damper, The cushioning material may be formed of rubber.

In the vibration damping apparatus according to the present invention, a separate bonding portion is formed between each of the buffer material of the upper steel plate wall and the lower steel plate wall and the upper steel plate and the lower steel plate, and the bonding portion is joined to the buffer material and the upper portion Bonding surfaces to be joined to the steel sheet and the lower steel sheet are formed separately from each other, and different adhesives may be used in the respective bonding surfaces.

In the vibration damping apparatus according to the present invention, a separate bonding portion is formed between each of the buffer material of the upper steel plate wall, the lower steel plate wall and the intermediate damper, and the upper steel plate and the lower steel plate, and the bonding portion is joined to the buffer material The surface and the bonding surfaces joined to the upper steel sheet and the lower steel sheet are formed separately from each other, and different adhesives may be used on the bonding surfaces.

Seismic reinforcing construction method according to the present invention is a seismic reinforcing construction method using a vibration damping device installed in the direction perpendicular to the security beam on the wall of the building composed of a left and right pillars and a guard beam between the two pillars, the vibration damping device has a top A steel plate wall, a lower steel plate wall, and an intermediate damper are installed, and the upper steel plate wall and the lower steel plate wall are installed facing each other in a space between two pillars of the wall and the guard against the intermediate damper. The steel sheet wall and the lower steel sheet wall are formed of a structure of a double steel sheet composed of two steel sheets spaced at predetermined intervals, respectively, and the intermediate damper is inserted and installed between predetermined thicknesses of the double steel sheet.

In the seismic reinforcing method according to the present invention, the upper steel sheet wall and the lower steel sheet wall are designed to have a greater thickness and greater rigidity than the intermediate damper, so that the intermediate damper is first destroyed when loaded.

In the seismic reinforcement construction method according to the present invention, the intermediate damper is bolted between each of the predetermined intervals of the upper steel plate wall and the lower steel plate wall, and the design strength of the bolt connection portion is greater than the design strength of the intermediate damper. It can be designed so that the bolt connection is not deformed, yielded or destroyed prior to deformation or yielding or destruction of the intermediate damper.

In the seismic reinforcing method according to the present invention, in order to reinforce tearing due to stress concentration in the bolt connection portion, the bolt uses a spring bolt, and the spring bolt is prestressed in advance so that it can serve as a buffer with elastic force of the body. When the pressure is fixed and the pressure is released, it can be manufactured to be separated by its elastic force.

In the seismic reinforcing method according to the present invention, a separate cushioning material may be installed at the predetermined distance between the upper steel plate wall and the lower steel plate wall, and the buffer material may be formed of rubber.

In the seismic reinforcement method according to the present invention, the installation position of the vibration isolator can be installed at a point where the bending stress of the structure is maximized so as to increase the bending strength in the longitudinal direction of the structure.

In the earthquake-proof reinforcement method according to the present invention, the intermediate damper may be formed of an upper steel plate and a lower steel plate.

In the seismic reinforcing method according to the present invention, the upper steel sheet and the lower steel sheet of the intermediate damper are spaced apart at predetermined intervals, and a separate buffer may be installed at a predetermined distance between the upper steel sheet and the lower steel sheet of the intermediate damper, , The cushioning material may be formed of rubber.

In the seismic reinforcing method according to the present invention, a separate bonding portion is formed between each of the buffer material of the upper steel sheet wall and the lower steel sheet wall and the upper steel sheet and the lower steel sheet, and the bonding surface and the bonding surface joined to the buffer material are formed in the bonding part. Bonding surfaces to be joined to the upper steel sheet and the lower steel sheet are formed separately from each other, and different adhesives may be used in the bonding surfaces.

In the seismic reinforcing method according to the present invention, a separate joint is formed between each of the buffer material of the upper steel plate wall, the lower steel plate wall and the intermediate damper, and the upper steel plate and the lower steel sheet, and the joint is joined to the buffer material Bonding surfaces and bonding surfaces to be bonded to the upper and lower steel sheets are formed separately from each other, and different adhesives may be used in the bonding surfaces.

The structure according to the present invention is a structure in which an anti-seismic damping device for seismic reinforcement in the vertical direction is installed on the left and right pillars and the two pillars, wherein the vibration isolator includes an upper steel plate wall and a lower steel plate wall. And an intermediate damper, wherein the upper steel sheet wall and the lower steel sheet wall are installed facing each other in a space between the two pillars of the wall and the guard against the intermediate damper, and the upper steel sheet wall and the lower steel sheet wall. Is formed in a structure of a double steel sheet composed of two steel sheets spaced at a predetermined interval, and is formed in a structure in which the intermediate damper can be inserted between predetermined intervals of the double steel sheets.

In the structure according to the present invention, the upper steel sheet wall and the lower steel sheet wall may be manufactured such that the intermediate damper is first destroyed when loaded by making the thickness and the stiffness greater than the intermediate damper.

In the structure according to the present invention, the intermediate damper is bolted between each of the predetermined intervals of the upper steel sheet wall and the lower steel sheet wall, and the design strength of the bolt connection part is greater than the design strength of the intermediate damper. Before the deformation or yielding or destruction of the intermediate damper, the bolt connection may be configured so as not to be deformed, yielded or destroyed.

In the structure according to the present invention, the bolt uses a spring bolt to reinforce tearing due to stress concentration in the bolt connection portion, and the spring bolt is pre-stressed in advance so that it can serve as a buffer with the elastic force of the body. When it is fixed and the pressure is released, it can be manufactured to be separated by its elastic force.

In the structure according to the present invention, a separate cushioning material may be installed at predetermined intervals between the upper steel sheet wall and the lower steel sheet wall, and the buffer material may be formed of rubber.

In the structure according to the present invention, the installation position of the vibration isolator can be installed at a point where the bending stress of the structure is maximized so as to increase the bending strength in the longitudinal direction of the structure.

In the structure according to the present invention, the intermediate damper may be formed of an upper steel plate and a lower steel plate.

In the structure according to the present invention, the upper steel sheet and the lower steel sheet of the intermediate damper are spaced apart at predetermined intervals, and a separate buffer material may be installed at a predetermined distance between the upper steel sheet and the lower steel sheet of the intermediate damper. The cushioning material may be formed of rubber.

In the structure according to the present invention, a separate bonding portion is formed between each of the buffer material of the upper steel sheet wall and the lower steel sheet wall and the upper steel sheet and the lower steel sheet, and the bonding part is joined to the buffer material and the upper steel sheet And bonding surfaces to be joined to the lower steel sheet are formed separately from each other, and different adhesives may be used in the bonding surfaces.

In the structure according to the present invention, a separate bonding portion is formed between each of the buffer material of the upper steel plate wall, the lower steel plate wall and the intermediate damper, and the upper steel plate and the lower steel plate, and the bonding portion is a bonding surface joined to the buffer material And the bonding surfaces joined to the upper steel sheet and the lower steel sheet are formed separately from each other, and different adhesives may be used on the bonding surfaces.

A damping device using a steel plate wall and an intermediate damper composed of a double steel plate according to the present invention, and a seismic structure and a seismic construction method using the same have the following effects.

First, since the intermediate damper is made of a material having a thinner thickness or a smaller stiffness than the upper steel plate wall and the lower steel plate wall, it is possible to induce linear deformation / yielding / destruction of the intermediate damper, so the damping device and the ductile behavior of the structure including the same You can enhance the characteristics.

Second, in addition to the above-described effect of inducing the intermediate damper's frontal shape by making the cross section of the damping device uniformly uniform and without making the cross section of the intermediate damper smaller, the weight of the damping device itself is reduced, and the seismic applied to the damping device and structure A double seismic reinforcement effect is generated in which the load is reduced.

Third, since the vibration damping device itself can serve as a new point for the entire structure, the effect of reinforcing the bending performance of structures, especially long span structures, especially wall-type residential buildings, school buildings, sports facilities, performance facilities, etc. Can be expected.

Fourth, the upper and lower steel plate walls and the intermediate damper are formed of a double steel plate, and a damping effect due to the shock absorber can be obtained by installing a separate buffer material in the double steel plate.

Fifth, by designing the connection between the steel plate wall and the intermediate damper to have greater strength and stiffness than the intermediate damper, the intermediate damper can be prevented from being linearly deformed / yield / destroyed than the connection between the steel plate wall and the intermediate damper. Characteristics can be achieved.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view showing a state of a building (structure) in which the damping device of the present invention is installed.
Figure 2 is a view showing an embodiment of the damping device of the present invention.
3 is a view showing a perspective view of the vibration control device of Figure 2;
1A to 2A and 3A are views illustrating that the vibration isolator 200 is installed on the outer surfaces of the guard beams 20 and 21, and FIGS. 1B, 2B, and 3B are guard beams. It is a figure explaining that it is installed in a manner sandwiched between (20, 21).
Figure 4 is a view showing the shape of a double steel sheet of an embodiment of the damping apparatus of the present invention.
Figure 5 is a view for explaining that the cushioning material is coupled between the double steel plate of one embodiment of the damping device of the present invention.
6 is a view showing an embodiment in which the cushioning material is installed only at the connecting portion of the upper and lower steel plate walls and the intermediate damper.
7 is a view showing an embodiment in which the cushioning material is installed substantially in the entire longitudinal direction of the intermediate damper.
8 is a view showing an embodiment in which the cushioning material is installed substantially in the entire longitudinal direction of the upper and lower steel plate walls.
9 is a view showing that the protrusions formed on the cushioning material are formed with a locking (locking) structure coupled to the grooves of the steel sheet.
Figure 10 is a perspective view showing that the bolt is fastened between the groove and the projection of the locking structure.
11 is a view showing an example in which the elastic member is arranged in the bolt according to another embodiment of the present invention.
12 is a view showing a configuration in which a nut, an elastic member, and a nut cap for preventing loosening of nuts are arranged on the bolt according to another embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and fully inform the skilled person of the scope of the invention. It is provided to give, the present invention is only defined by the scope of the claims.

Throughout the present specification, the same reference numerals refer to the same components.

“And / or” in this specification includes each and every combination of one or more of the items mentioned. In the present specification, the singular form also includes the plural form unless otherwise specified in the phrase. Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a sense that can be commonly understood by those skilled in the art. Also, the terms defined in the dictionary are not ideally or excessively interpreted unless specifically defined.

In the following description, the description of any one of the vibration damping apparatus of the present invention, the seismic construction method using the same, or the structure using the same should be understood as a description of the other two unless otherwise defined. For example, in the intermediate damper of the damping device, the description that the buffer material is installed only at the connection between the intermediate damper and the upper and lower steel plate walls as shown in FIG. 6 should also be understood as a description of the seismic construction method and structure using such a damping device. .

As shown in FIGS. 1 to 3, the vibration isolation device 200 used in the seismic reinforcing method of the present invention includes a pillar 10 and a pillar 11 of a structure, such as the building 100, and a protective beam 20 between the pillars 20 , 21) is installed in the vertical direction to the guard beam (20, 21) in the wall of the building consisting of.

As can be seen in Figures 1a, 2a, and 3a above, the vibration isolating device 200 may be installed in a manner that is added to the outer surface of the guard beams 20, 21 over the outer surface thereof, FIGS. 1b, 2b , As shown in Figure 3b may be installed in such a way that the vibration isolating device 200 of the guard (20, 21) is inserted.

When the vibration isolator 200 is installed on the outer surfaces of the guard beams 20 and 21, the bolts 60 and 62 have a direction looking at FIGS. 1 to 3 as the fastening direction of the bolts, and the guard beam 20, 21) When inserted between the pillars (10, 11) in the direction of the anisotropic beams (20, 21) and the vibration damping device 200 through the upper and lower is to be fastened.

In addition, the vibration damping device 200 is configured to include an upper steel plate wall 30, a lower steel plate wall 40 and an intermediate damper 50.

The upper steel plate wall 30 and the lower steel plate wall 40 face each other in the space between the two pillars 10 and 11 of the wall and the ribs 20 and 21 with the intermediate damper 50 therebetween. It is installed symmetrically to correspond to the report, and the intermediate damper 50 is preferably located in the middle of the upper steel plate wall 30 and the lower steel plate wall 40.

The upper steel sheet wall 30 and the lower steel sheet wall 40 may be provided with a bracing 70 in a diagonal direction in order to increase the resistance of the surface against the lateral direction (direction perpendicular to the longitudinal direction of the vibration isolator) seismic load. .

In addition, the upper steel plate wall 30 and the lower steel plate wall 40 may be bolted (60, 62) to the ribs (20, 21), in which case the ribs (20, 21) itself is steel steel When formed as, or when the protective beam (20, 21) is formed of concrete, a bolt connection between the steel wall (30, 40) and the protective beam (20, 21) through a separate connecting plate attached to concrete ( 60, 62) may be formed. Of course, when the ribs 20 and 21 are formed of a steel frame, the connecting portions 60 and 62 may be welded connecting portions.

Referring to FIG. 4, the upper steel plate wall 30, the lower steel plate wall 40, and the intermediate damper 50 may be formed of a structure of a double steel plate composed of two steel plates spaced at predetermined intervals, respectively. For convenience, the following description and drawings are mainly described on the basis that the intermediate damper 50 is composed of two steel plates 500 and 501, similarly to the upper steel plate wall 30 and the lower steel plate wall 40, but the middle of the present invention The damper 50 may be formed of one single steel sheet.

That is, in the present invention, the rigidity and strength of the two upper and lower steel plate walls 30 and 40 and the intermediate damper 50 connected therebetween are different, that is, the rigidity and strength of the intermediate damper 50 are made small to make the upper and lower steel plates. Since the intermediate damper 50 constitutes the vibration damping device 200 that deforms, yields or breaks before the walls 30 and 40 as a basic configuration, it is also right that the intermediate damper 50 is formed of a single steel plate. It is included in the scope.

Likewise, in the present invention, the intermediate damper 50 is designed by designing the strength or rigidity of the connection portion 61 of the intermediate damper 50 and the steel plate walls 30 and 40 to be greater than the strength or rigidity of the intermediate damper 50 itself. ) Is another basic configuration to allow deformation, yield, or destruction behavior before the connection part 61, so the intermediate damper 50 is not necessarily limited to the scope of the present invention. .

Meanwhile, the upper steel plate wall 30 is composed of upper and lower double steel plates 300 and 301, the lower steel plate wall 40 is upper and lower double steel plates 400 and 401, and the intermediate damper 50 is composed of upper and lower double steel plates 500 and 501. do. Between the double steel plates 300 and 301 of the upper steel plate wall 30 and the double steel sheets 500 and 501 of the intermediate damper 50, and between the double steel sheets 400 and 401 of the lower steel plate wall 40 Between the double steel plates 500 and 501 of the damper 50 may be connected using a bolt connection portion 61.

As can be seen in Figure 4 is formed in such a way that the predetermined lengths of both ends of the double steel plates 500 and 501 of the intermediate damper 50 are inserted and connected between the double steel plates of the upper steel plate wall and the lower steel plate wall.

That is, between the double steel plates 300 and 301 of the upper steel sheet wall 30 and the double steel sheets 400 and 401 of the lower steel sheet wall 40 and the double steel sheets 500 and 501 of the intermediate damper 50. Each connection portion can be connected using a bolt 61, a predetermined gap is formed between the steel plate 500 and the steel plate 501 as shown in FIG. 4, and a buffer material 80 is provided at the predetermined gap. Can be formed. The specific configuration of the cushioning material will be described with reference to FIG. 5.

In addition, a predetermined gap is formed between the double steel plates 300 and 301, a predetermined gap is also formed between the double steel plates 400 and 401, and a buffer 80 may be formed at such a predetermined gap. have.

In addition to the connection using the bolt 61, a semi-permanent connection method, such as welding, may also be considered, but the intermediate damper 50 of the present invention may require external reinforcement, such as an earthquake or typhoon, depending on the service life of the structure, as needed for reinforcement. When the building 100 or the vibration damping device 200 is damaged by the use, it is preferable to use a bolt fastening method that is relatively easy to combine and disassemble so that the intermediate damper 50 can be easily replaced. This applies equally to the connecting portions 60 and 62 between the steel plate walls 30 and 40 described above and the guard beams 20 and 21.

In addition, in the damping device 200 of the present invention, the design of the intermediate damper 50 among the upper steel plate wall 30, the lower steel plate wall 40, and the intermediate damper 50 in order to realize the ductile behavior characteristics of the structure to the maximum By designing the weakest strength or stiffness, the intermediate damper 50 can be deformed / yield / destroyed first. In this way, the intermediate damper 50, which is the easiest to replace, and which can relatively delay the collapse of the structure, can be deformed / yield / destroyed first, so that it is necessary after the deformation / yield / destruction of the intermediate damper 50. It will be possible to secure a time for evacuation or evacuation of residents. That is, when the intermediate damper 50 is deformed / yield / destroyed, it is still possible to expect some support effect through the steel plate walls 30 and 40, so it will not immediately lead to the collapse of the building. After deformation / yielding / destruction, if the evacuation of the residents between the deformation / yielding / destruction of the steel wall (30, 40) is promptly performed or urgent maintenance reinforcement can be done, it is possible to minimize the damage to human life or damage to the structure. This leads to an increase in the ductility characteristics of the building 100.

This can be said to be a principle similar to preventing the inflow of more power than the internal structure can handle by pre-destructing a fuse made of a thin electric film when an allowable voltage is introduced into the building.

In addition, as can be seen in FIG. 4, the damping device 200 of the present invention has a width of the intermediate damper 50 (the thickness in the vertical direction including the cushioning material when viewed in FIG. 4) of the upper steel plate wall 30 and the lower part. Compared to the conventional vibration isolator, which is narrow compared to the steel plate wall 40 to design the vibration isolator 200 with a uniform width, it is possible to minimize the visual field blocking area of the exterior wall of the building 100, thereby damaging the exterior of the building 100 Can be reduced to some extent. In addition, the width of the intermediate damper 50 is small compared to the upper steel plate wall 30 and the lower steel plate wall 40, and its design strength is also relatively small, so that the weight of the hardware of the intermediate damper 50 itself is reduced. As a result, it is possible to reduce the load of the building 100 itself, and through this, it is possible to expect the effect of increasing the seismic performance through the reduction of the earthquake load.

The intermediate damper 50 is connected in such a way that it is inserted at predetermined intervals between the double steel plates of the upper steel plate wall 30 and the lower steel plate wall 40 as can be seen in FIGS. 2 and 4.

On the other hand, referring to Figure 5, between the upper steel plate 300 and the lower steel plate 301 of the upper steel plate wall 30, insert a cushioning material 80, such as high-attenuation rubber, and the steel plate (300, 301) and high Between the damping rubber 80, such as a damping rubber, the bonding portion 81 by vulcanization may be formed on the upper steel plate 300 and the lower steel plate 301, respectively. Here, the vulcanizing adhesive means a method of chemically bonding the joint by applying heat and pressure. Through this, strong adhesiveness can be achieved by achieving strong chemical bonding using two types of adhesives compatible with rubber and steel sheet. That is, in the joining portion 81 by vulcanization bonding, different adhesives are used for the portion adhered to the steel sheet and the portion adhered to the rubber. Through this, the cushioning material 80 can be firmly fixed to the steel plates 300 and 301 through the joint portion 81 without a separate fixing mechanism. This can also be applied to other steel plates 400, 401, 500, and 501.

On the other hand, the vibration damping apparatus 200 according to the present invention can achieve high initial stiffness and damping performance as a seismic damper of the vibration damping apparatus 200 by using a cushioning material 80 such as the high-damping rubber, so it is very efficient for micro vibration. It is effective not only for large earthquakes, but also for microscopic vibrations caused by aftershocks or everyday vibrations (wind, etc.) and long-term earthquakes. Therefore, even if there is no major earthquake, it can have a great advantage in the case of a low to medium-sized earthquake occurring in soft ground.

For this reason, the vibration damping apparatus 200 of the present invention and the seismic construction method using the same can be widely used not only in a high-rise building in Korea where a large-scale earthquake does not occur realistically, but also in a small- or medium-sized building or remodeling of an existing building.

In addition, when using a double steel sheet (300, 301, etc.) including a cushioning material 80, such as high-damping rubber, it is possible to downsize the plate according to high rigidity, thereby achieving cost reduction. In addition, according to the miniaturization, as described above, the weight of the vibration damping device 200 itself can be reduced, thereby reducing the seismic load itself. In addition, since the fine damping performance can be adjusted according to the design target, the cost of the vibration damping device 200 can be reduced, and the maintenance cost is also reduced because of excellent repeatability and stability over time.

That is, the seismic construction method of the present invention using the upper steel plate wall 30 and the lower steel plate wall 40 and the damper 200 using the intermediate damper 50 composed of a double steel plate and a buffer material 80 therebetween, The upper steel sheet wall 30 and the lower steel sheet wall 40 may be formed of a thick high-strength steel sheet to have large rigidity, and the intermediate damper 50 may be formed of a thin, low-strength steel sheet. The seismic construction method using the vibration damping device 200 as in the present invention is a method for increasing the ductility when acting on the lateral load, and the weight of the seismic reinforcing structure is reduced compared to the use of a thick steel sheet for the entire cross section, thereby improving the seismic performance. It helps. This is because the seismic load can be reduced when the weight of the building decreases.

The lower steel wall 40 and the intermediate damper 50 are also preferably formed in a structure as shown in FIG. 5.

In addition, when the cushioning material 80 is not a rubber material such as a high-damping rubber, but is a steel material, the buffer material 80 inserted between the steel sheet 300 and the steel sheet 301 and the steel sheets 300 and 301 are fixed to The connection may be, for example, a bolt connection or a welding fixing method.

In the above, although the buffer material is installed on both the upper steel sheet wall 30, the lower steel sheet wall 40, and the intermediate damper 50, the upper steel sheet wall as shown in FIGS. It may be installed only on the 30 and the lower steel plate wall 40 or only on the intermediate damper 50, or only on the connecting portion of the steel plate wall and the intermediate damper.

On the other hand, instead of using a rubber such as high-damping rubber as a cushioning material 80 between the double steel sheets, a steel sheet is used as a cushioning material, and the upper and lower double steel sheets 300, 301, etc. are relatively thick and rigid. If it is made large, and the middle steel plate 80 is relatively thin and the stiffness is small, it is intermediate between the upper and lower thick steel plates (for example, 300, 301) and the middle thin steel plate 80 when viewed from the behavioral side. Since the thin steel plate 80 of the first deforms and breaks, it is possible to induce the ductile behavior of the entire structure, and in the worst case, it is possible to predict the destruction of the structure due to an earthquake load in advance.

That is, in the present invention, in particular, since the steel plate walls 30 and 40 are all made of double steel plates, and the buffer material 80 inserted into the gap between them can be visually confirmed without difficulty, even if not an expert, the deformation of the buffer material 80 Or destruction can be seen on the left and right sides of the wall. Therefore, through the deformation or destruction of the cushioning material 80 in the steel plate walls 30 and 40, it is possible to predict whether the vibration damping device 200 is damaged early without the help of a diagnostic expert and evacuate by itself or request expert help. . In particular, in the case of a small residential building or a school building, there is often no capacity to periodically perform a large-scale diagnosis, or it is often difficult for young students to easily recognize a building collapse signal obvious to an expert or an adult. And the seismic construction method using the same can be very beneficial.

In addition, in the present invention, whether a rubber such as a high-damping rubber or an intermediate steel plate used as a cushioning material between the double steel plates, the double steel plates 300, 301/400, 401 and the intermediate damper of the upper and lower steel plate walls 30, 40 are used. Bolt connection portion (61) between the double steel plate (500, 501) or the bolt connection portion (60, 62) between the upper and lower steel plate walls (30, 40) and the guard (20, 21) of the building 100, the buffer material It should not be destroyed before the steel sheet or rubber used as (80). That is, the design strength should be set so that each connecting portion 60, 61, 62 is not pre-destructive than the respective steel plates 300, 301, 400, 401, 500, 501, as well as the buffer material 80 therein. This is because, when the connection part is pre-destructed, the ductile behavior of the vibration damping device 200 and the building 100 cannot be expected, which may lead to sudden brittle fracture, so that sufficient evacuation time cannot be secured when the building collapses.

In addition, as described above, among the steel plates, the design strength of the steel plates 500 and 501 of the intermediate damper should be the lowest, and among them, the design strength of the buffer material 80 inserted into each steel plate should be the lowest. As described above, since the cushioning material 80 generally uses a rubber material having a lower strength than the dual steel sheet or uses a thin steel sheet having a low strength / rigidity compared to the dual steel sheet, the strength / rigidity of the cushioning material is generally lower than that of the dual steel sheet. do.

That is, the design strength of the double steel plates 300, 301, 400, 401, 500, and 501 should be greater than the design strength of each buffer material 80.

To this end, the strength of the steel sheet and the cushioning material is determined through the thickness or material of the steel sheet and the cushioning material. That is, it is preferable that the upper steel sheet wall 30 and the lower steel sheet wall 40 are manufactured using a steel sheet having a greater thickness and greater rigidity than the intermediate damper 50 so that the intermediate damper is first destroyed when a seismic load is applied. Do.

In addition, considering the distribution of the design strength, the strength of each connection portion 60, 61, 62 is determined. For example, in the case of a connection portion using a bolt, the breaking strength of the bolt, the number of bolts, the area of the bolt connection portion, etc. are determined. When the welding connection is used, the welding strength, such as the neck thickness and effective length of the welding portion, is determined.

In summary, it can be summarized that the strength is determined in the order of the connection> double steel plate> buffer material, and the strength is determined by the size of the steel plate wall> intermediate damper.

It is very important to design the strength of the steel plates or the cushioning materials (300, 301, 400, 401, 500, 501, 80) and the connecting portions (60, 61, 62) to obtain the ductile fracture behavior of the building (100). In particular, the connection portion 61 between the intermediate damper 50 and the upper and lower steel plate walls 30 and 40 is a buffer material between the intermediate damper 50 or the double steel plates 500 and 501 of the intermediate damper 50. It is important to design so that it does not break before (80).

In addition, in the damping device 200, the buffer material in the double steel sheet should not be pre-destructed.

On the other hand, the connection between thick upper and lower steel plates and thin steel plates is preferable to using spring bolts rather than using general high-strength bolts (high probability of tearing of the bolt connection due to stress concentration), and the spring bolts themselves play a buffer role with their own elastic force. It becomes possible. The spring bolt (nut) is fixed by being pressed and means a bolt that can be separated by its elastic force when the pressure is released. Since the spring bolt itself can function as a buffer (damping), the damping using a damper as in the present invention It is advantageous for use in devices.

It is preferable that the spring bolt is fixed to a prestressing pressure in advance so as to be able to serve as a buffering force by the elastic force of the body and can be separated by the elastic force when the pressure is released.

The connection using the spring bolt will be described below with reference to FIGS. 11 and 12.

6, in the present invention, the upper and lower thick steel plates 300, 301, 400, 401 of the upper and lower steel plate walls 30, 40 and the relatively thin steel plates 500, 501 of the intermediate damper 50 are mutually A separate high-damping rubber-like cushioning material 80 may be inserted only in the connected portion. In this case, the upper and lower steel plate walls 30 and 40 usually have a thicker thickness of the steel plate than the intermediate damper 50, so the damping strength is strong, so that the intermediate damper 50 is connected to the steel plate walls 30 and 40. If only the connecting portion 61 is supplemented with the damping function, the intermediate damper 50 has a smaller design strength than the steel plate walls 30 and 40, while the intermediate damper 50 itself has a connecting portion 61 than the steel plates 500 and 501. First, it is possible to simultaneously prevent the destruction, and at the same time minimize the use of the cushioning material 80, thereby simultaneously reducing the loads of the vibration damping device 200 and the building 100 itself and the resulting earthquake-resistant load reduction.

Alternatively, as shown in FIG. 7, the buffer 80 is used only for the entire span of the double steel plates 500 and 501 in the intermediate damper 50, or the double steel plates 500 and 501 of the intermediate damper 50 are used as shown in FIG. It is also possible to use the cushioning material 80 only between the double steel plates of the upper and lower steel plate walls 30 and 40 without inserting the cushioning material in close contact with each other.

In the case of FIG. 7, it is possible to obtain a load reduction effect by the thickness of the buffer material used for the upper and lower steel plate walls 30 and 40, as described above, while on the other hand, when compared to FIG. 6, the double of the steel plate and the intermediate damper If the difference in strength (thickness) of the steel sheet is large, it may be structurally unstable to use a buffer material only in the connection portion 61. In this case, the embodiment of FIG. 7 may be an effective method.

In the case of FIG. 8, since the double steel plates 500 and 501 of the intermediate damper 50 are not in close contact with each other, a buffer material is not used, and thus the strength of the double steel plate of the steel plate wall and the double steel plate of the middle damper are generally preceded In the case of uniformity as in the prior art without placing a difference as shown in the figure, while maintaining the design and construction convenience using a uniform steel plate, the strength of the steel plate walls 30 and 40 is reinforced to provide a relatively damper-free intermediate damper 50 Since the effect of reducing the strength and stiffness of can be obtained, it may be appropriately effective to achieve the strength distribution of the steel wall> intermediate damper as described above.

In the case of FIG. 8, it can be seen that since the uniform steel sheet is used for both the steel wall and the intermediate damper, construction of the vibration damping device 200 becomes easier.

In the seismic construction method using the vibration isolator 200 which differs substantially in the arrangement method of the cushioning materials as shown in FIGS. 4 and 6 to 8, the connection portion is compared to the double steel plates 500 and 501 in the intermediate damper 50. Reinforcing the strength of (61) is the most important. For this purpose, as shown in FIG. 9, a locking structure is formed between the intermediate damper 50 and the cushioning material 80, and the buffer material is formed in the groove 83 formed by being recessed from the surfaces of the steel plates 500 and 501 of the intermediate damper 50 ( A plurality of protrusions 82 of 80) are formed in pairs, such that the grooves 83 and protrusions 82 mesh with each other to form a locking structure. This locking structure can be applied to the embodiment in which the cushioning material 80 is all installed in the span of the steel sheet as shown in FIG. 7. In addition, when using the locking structure, the cushioning material 80 may be rubber or high-damping rubber, but is preferably a steel material.

In addition, the locking structure, as shown in Figure 9 in the transverse direction (direction perpendicular to the longitudinal direction of the vibration isolator) to effectively resist the seismic force and to prevent the locking from being released in the vertical direction, the protrusion 82 and the groove ( 83) It is preferable that the intermediate damper 50 is arranged with a step in the vertical direction with respect to the vertical direction, and in this way, it is possible to delay the release of the locking structure as much as possible even if the yield of the intermediate damper 50 is started.

As can be seen in FIG. 10, a plurality of grooves 83 and protrusions 82 of the locking structure can be formed, and an intermediate damper is provided so as not to interfere with them between the plurality of grooves 83 and protrusions 82. A bolt 61 connecting the double steel plates 500 and 501 of the 500 and the cushioning material 80 may be fastened. 10, the groove 83 is not separately shown in the steel sheet 501.

The installation position of the vibration damping device 200 of the present invention is in the building 100, so that the bending stress of the structure is maximized so as to increase the bending strength in the longitudinal direction of the building 100, so that it is installed at a point where sag is maximized. It may be desirable because the damping device 200 itself is, for example, a pillar 10 and a pillar 11 of the building 100 as shown in FIG. 1 and the guard beams 20 and 21 between the pillars This is because in the case of a long span structure in which several structures 100 composed of) are connected, it can act as a new point while vertically connecting between the upper and lower guard beams 20 and 21 of the wall. For this reason, it is preferable to determine the position of the vibration isolator 200 so that the vibration isolator 200 is not simply used as a seismic structure, but can be used as a number of intermediate points in the entire transverse span of the building 100. You can.

In addition, the intermediate damper 50 of the present invention serves to make a kind of new intermediate point when the span between the pillar 10 and the pillar 11 is large, so it is expected to improve the bending performance of the frame itself in addition to simply improving seismic performance. It becomes possible.

In particular, since the vibration damping device 200 itself can serve as a new point for the entire structure 100, a structure, particularly a long span structure, especially a wall-type residential building or school building, a sports facility, or a performance facility The effect of reinforcing the bending performance of the back can be expected. Because the bending moment is inversely proportional to the length of the span between one point and the other point of the member, if the damping device acts as an intermediate point of a member or structure of one span, for example, in the middle of one point and another point If positioned, the bending moment may also decrease as the span decreases from L to 2 / L, such that the deflection of the structure decreases, thereby improving the bending strength.

On the other hand, when explaining in more detail the advantageous effect of using high-damping rubber between the double steel plates as described above in the seismic reinforcement method of the structure using the double steel plate of the present invention, the high-damping rubber has excellent damping of the original rubber. It is manufactured considering the inherent characteristics such as performance and low temperature dependence to maximize the damping performance of the rubber material, and the high-damping rubber has a different absorption and divergence form of kinetic energy due to deformation compared to general rubber, and seismic force You can suppress the vibration by changing the vibration of the heat to heat. That is, the high-damping rubber can instantly convert vibration energy into thermal energy, and can have high energy absorption performance even in small vibrations.

In addition, when the vibration damping apparatus and the seismic construction method of the present invention are employed, it is possible to exert high vibration damping performance against excitation that occurs repeatedly by inserting and using a rubber material between double steel plates.

Here, the anti-vibration design refers to a design method that reduces the seismic force that the structure bears by dissipating some seismic energy due to the plastic behavior of the device by applying a vibration control system rather than resisting an earthquake load through damage to the structure (existing seismic design method). The device used for such a vibration control design is a vibration control device.

Among these seismic reinforcement methods, the strength and stiffness reinforcement method increases the strength / stiffness of the building, but the deformation ability does not change, and the cost of foundation reinforcement is added due to the increase in its own weight. In the case of birds, a sudden decrease in proof stress is caused by buckling.

The ductile reinforcing method has a small effect on the plan due to the small change in member cross-section dimensions, and has a small impact on the building weight due to its characteristics of light weight and high strength. Increases.

The method of adding ductile reinforcement and damping does not affect the indoor environment such as the building's copper wires and flat surfaces, and it shows a decrease in reinforcement by increasing stability and reducing response with low cost and short air and excellent energy absorption capacity.

On the other hand, when explaining the method of installing the vibration damping apparatus using the intermediate damper of the present invention, the steel plate walls 30 and 40 of the vibration damping apparatus 200 are to be installed in the security beams 20 and 21 of the building 100. After the slab is surface-treated, and after the slab is drilled, the steel plate walls 30 and 40 are installed, and after the intermediate damper 50 is installed between the steel plate walls 30 and 40, the torque value is measured, Sealing and epoxy grouting. The process of installing the intermediate-term intermediate damper 50 includes puncturing the steel wall 30 and 40 and the intermediate damper 50 and connecting bolts or welding between them.

Of course, if the steel plate wall and the intermediate damper are formed of double steel plates, it is preferable to pre-assemble them and bring them into the field, and it is preferable to insert the buffer material between the steel plates in advance and also to manufacture the joints by vulcanization by pre-assembly. Do.

Such damper structures are sometimes referred to as wall dampers because most of these steel structures are installed on the outer walls of buildings.

If the damper as in the present invention is described in more detail, the damper may use a viscous damper, and the viscous damper may be used for shear deformation of an oil damper or a viscoelastic material bonded between them to exhibit damping ability even at very small micro displacements. Through it, a viscoelastic damper that dissipates energy can be used.

Below are examples of oil dampers and viscoelastic dampers.

[Figure 1: Example of oil damper and viscoelastic damper]

In addition, a hysteretic damper can be used, and since the yield displacement is relatively large, it yields early compared to steel dampers and steel dampers that are difficult to exert damping capacity in urine, and the secondary stiffness after yield is very small, even in urine wishes. As a device that utilizes energy dissipation due to friction between two materials during exercise, a lead damper that exhibits damping capacity may have a friction damper that needs an appropriate material to maintain a coefficient of friction, and Figure 2 below is an example of these.

[Figure 2: Hysteretic damper example]

Hereinafter, a connection method using a spring bolt according to the present invention will be described with reference to FIGS. 11 to 12, wherein the spring bolt is connected to the bolt connection portions 60, 61, and 62, in particular, to the bolt connection portion 61 as follows. Can be applied.

 11 is a view showing a configuration in which the connection member using the spring bolt of the present invention is an elastic member, that is, a spring is arranged on the anchor. 12 is a view showing a configuration that includes a bolt and a nut, an elastic member and a nut cap for preventing the nut from loosening.

As shown in FIG. 11, the bolt connection portion using the spring bolt may include an anchor 1110, a bolt 1120, a first nut 1130, and a first spring 1140.

11 shows an example of using an anchor in which a female thread portion is formed as an example of the anchor. Therefore, a separate bolt, for example, a computer bolt, may be fastened to the female thread portion to fix the steel plate. If an anchor type bolt (for example, an anchor bolt) is pre-fastened or integrally formed with an anchor, the bolt provided with the anchor can be used, or the bolt provided can be replaced. Another bolt can be used to perform the reinforcement method of the present invention.

 Therefore, depending on the type of anchor used, a bolt 1120 pre-fastened to the anchor 1110 may be used, such as an anchor bolt, or a separate bolt 1120 conforming to the specification of the anchor 1110, for example It will be understood by those skilled in the art that computational bolts may be used.

Hereinafter, for clarity, the direction in which the anchor 1110 is buried in the anchor receiving portion 1101 is referred to as a downward direction (lower, lower) of the anchor or bolt, and the bolt 1120 fastened with the anchor 1110 ) Will be described by referring to the direction in which the steel plate 1200 is connected to the upper direction (top, top) of the anchor or bolt.

Here, the steel sheet 1200 may mean steel sheets 300, 301, 400, 401, 500, and 501. In addition, the bolt 1120 may represent the bolt connecting portions 60, 61, and 62, and in the embodiments of FIGS. 11 and 12, a separate anchor having a spring receiving portion 1102 accommodating the spring 1140 ( It is described that the bolt 1120 is inserted and connected in 1110.

The first spring 1140 is installed on the outer circumference of the bolt 1120 at the top of the anchor 1110. The first spring 1140 may be installed after the anchor 1110 is buried or after the bolt 1120 is fastened to the anchor 1110. That is, before fastening the steel plate 1200 with the bolt 1120, the first spring 1140 is first placed on a separate member 1100. Here, the separate member 1100 may mean the cushioning material 80. Then, the steel plate 1200 is fastened to tighten the first nut 1130 so that the first spring 1140 contacts the steel plate 1200.

The first spring 1140 is located inside the member 1100 and can effectively transmit vibration, expansion force, and contraction force applied to the member 1100 to the steel plate 1200 attached as a reinforcing material to the member 1100. As described above, the first spring 1140 is in close contact with the reinforcing member inside the member, absorbs forces and vibrations acting on the structure to the elastic member and simultaneously transmits it to the reinforcing member, thereby improving the reinforcing effect by the reinforcing member.

In addition, the first spring 1140 may disperse the force received by the anchor 1110 embedded in the member 1100. The anchor 1110 and the bolt 1120 buried in the member 1100 are constantly subjected to force due to vibration, shock, expansion, contraction, and the like. As a result, the anchor 1110 and the bolt 1120 and the member 1100 A phenomenon in which the coupling between the two becomes loose may occur. The first spring 1140, which is an elastic member, absorbs and disperses this force. Therefore, the anchor 1110 and the bolt 1120 may be suddenly loosened or damaged by an external force such as vibration, thereby preventing the steel plate 1200 from falling off the member 1100.

In order to install the first spring 1140 having this effect, after forming the anchor receiving portion 1101 on the outer surface of the member 1100, the first spring receiving portion 1102 on the anchor receiving portion 1101 Can be further formed. In this case, the diameter d _s1 of the first spring accommodating portion 1102 may be greater than or equal to the diameter d _a of the anchor accommodating portion 1101. Therefore, in the exemplary embodiment of the present invention, when the anchor receiving portion 1101 is formed, the outer surface of the member 1100 is equal to the length of the length 1 of the anchor 1110 and the length l of the first spring 1140. Digging a groove from this time, the diameter is formed to a size to accommodate the anchor 1110 (d _a ), the diameter (d _s1 ) of the first spring receiving portion 1102 is the diameter of the anchor receiving portion 1110 ( When _a larger than d _a ) is desired, the first spring receiving portion 1102 is equal to the length 1 of the first spring 1140 from the outer surface of the member 1100 at the position where the anchor receiving portion 1110 is formed. ) A groove having a diameter d _s1 may be additionally formed.

The size of the first spring 1140, that is, diameter, thickness, and length may be appropriately selected as needed.

In addition, since the bolt 1120 is installed through the first spring 1140, the bolt 1120 serves as a guide for preventing the first spring 1140 from bending or bending.

In addition, a first spring protection unit 1170 may be added to the first spring receiving unit 1102. The first spring protection unit 1170 is for preventing foreign matter from being caught in the first spring 1140, and is a cylindrical member installed to fit the diameter of the first spring receiving unit 1102.

The bolt 1120 is installed by penetrating the inner diameter of the first spring 1140, and then through the through hole 1210 of the steel plate 1200 with the bolt 1120 to pass the steel plate 1200 through the member 1100. ). When there are a plurality of through holes formed in one steel plate 1200, the steel sheets are positioned such that the plurality of through holes are engaged with bolts corresponding to each.

The first nut 1130 is fastened to the bolt 1120 so that the steel plate 1200 located on the outer surface of the member 1100 is fastened, and the first nut 1130 is tightened.

A washer (not shown) for preventing the nut from being loosened may be included between the first nut 1130 and the steel plate 1200. For example, washers such as flat washers, spring washers, rubber washers, and the like can be used.

In general, in the fastening method using a bolt and a nut, there is a possibility that elasticity is lost due to the yielding of the material, or a space is generated due to vibration of the fastening structure and parts, thereby reducing frictional force between the bolt and the nut and causing loosening. In order to prevent an accident from occurring due to the loosening phenomenon, a method of fixing a bolt and a nut by injecting an adhesive is used in the prior art, but when the nut needs to be dismantled for maintenance, the nut must be destroyed. .

In the present invention, a second spring 1150 and a second nut 1160 are additionally installed on the first nut 1130 to facilitate construction while preventing loosening. The configuration of this embodiment will be described below with reference to FIG. 12.

12, the connection structure including the anchor 1110, the bolt 1120, the first nut 1130, the first spring 1140, the second spring 1150 and the second nut 1160 Can be configured.

FIG. 12 relates to an embodiment in which the second spring 1150, the second nut 1160, the nut cap 1300, and the like are added to the above-described configuration in FIG. 11, and the configuration applied to FIGS. 11 and 12 is the same. And the description of the method will be omitted.

A first nut 1130 is fastened to the bolt 1120, and a second spring 1150 and a second nut 1160 are sequentially placed on the bolt 1120 protruding upwards of the first nut 1130. Order. At this time, as in the first spring 1140, since the bolt 1120 is installed through the second spring 1150, the bolt 1120 prevents the second spring 1150 from bending or bending. It serves as a guide.

The second spring 1150 is located between the first nut 1130 and the second nut 1160 so that one end of the second spring 1150 contacts the first nut 1130 and the second spring. The other end of (1150) is positioned in contact with the second nut (1160). A first fixing groove 1131 and a second fixing groove 1161 are formed on the first nut 1130 and the second nut 1160, respectively, so that a second spring 1150 is provided in the fixing grooves 1131 and 1161. ) Both ends are positioned in a seated shape.

In an example of the present invention, when the first nut 1130 rotates in the unwinding direction, the second spring 1150 having one end located in the first fixing groove 1131 of the first nut 1130 rotates in the opening direction So, that is, the second spring 1150 may be installed to be relaxed. Therefore, the first nut 1130 is in contact with the first nut 1130 by the release energy acting in the unwinding direction, that is, the direction of the lower end of the second spring 1150, the second spring 1150 is opened When trying to rotate, the other end contacting the second fixing groove 1161 of the second nut 1160, that is, the upper end of the second spring 1150 is between the second nut 1160 and the second spring 1150 As the rotation of the second nut 1160 is prevented by the frictional force acting on, the unwinding energy is re-established by the restoring force of the second spring 1150 trying to rotate or partially rotated in the widening direction. ), The second spring 1150 is transferred in the direction of closing, thereby preventing the first nut 1130 from loosening.

Therefore, the second spring 1150 presses the first nut 1130 from the top of the first nut 1130 to prevent the first nut 1130 from being loosened by vibration or the like. In addition, since the second spring 1150 absorbs vibrations transmitted through the steel plate 1200, the bolts 1120, and the nuts 1130, 1160 to the elastic member and simultaneously presses the upper portion of the first nut 1130. When the 1 nut 1130 is used alone, the friction force is increased to prevent rotation of the first nut 1130.

In addition, the nut cap 1300 may be additionally installed to prevent the bolts 1120, the first and second nuts 1130, 1160 from rotating, and to physically fix them. The nut cap 1300 is formed to accommodate the first and second nuts 1130 and 160, the second spring 1150 and the bolt 1120.

The nut cap 1300 may also block moisture and dust from an external environment to prevent the bolts 1120, the first and second nuts 1130, 1160, and the second spring 1150 from rusting. . As such, the life extension effect of the bolt 1120, the nuts 1130, 1160 and the second spring 1150 may be maximized.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

In addition, the accompanying drawings are not shown according to scale, but partially enlarged and reduced to illustrate the technical idea of the present invention.

In addition, it is natural that the embodiments of selectively combining the components and steps of the system, method, or apparatus of the present invention described above also belong to the scope of the present invention.

100: architecture
10, 11: pillar
20, 21: Defense
30: upper steel plate wall
40: lower steel plate wall
50: intermediate damper
60, 61, 62: bolt connection
70: Bracing
80: cushioning material
81: joint by vulcanization
82: protrusion
83: Home
300, 301: double steel sheet on the upper steel sheet wall
400, 401: double steel plate of the lower steel plate wall
500, 501: double steel plate with intermediate damper
1101: anchor accommodation
1102: spring receiving portion
1110: anchor
1120: bolt
1130: first nut
1131: 1st fixed home
1140: first spring
1150: second spring
1160: second nut
1161: Second fixed home
1170: first spring protection
1200: steel plate
1210: Through hole
1300: nut cap

Claims (10)

As a damping device installed in the vertical direction to the guard beam in the wall of the building consisting of a guard beam between the left and right pillars and the two pillars,
The damping device includes an upper steel plate wall, a lower steel plate wall and an intermediate damper,
The upper steel sheet wall and the lower steel sheet wall are installed facing each other in a space between the two pillars of the wall and the guard beam with the intermediate damper therebetween,
The upper steel sheet wall and the lower steel sheet wall are each formed of a structure of a double steel sheet composed of two steel sheets spaced at a predetermined interval, and are formed in a structure in which the intermediate damper can be inserted between predetermined intervals of the double steel sheet. ,
The upper steel sheet wall and the lower steel sheet wall are thicker than the intermediate damper and have a high rigidity so that the intermediate damper is first destroyed when loaded,
The intermediate damper is bolted between each of the predetermined spacings of the upper steel sheet wall and the lower steel sheet wall,
The design of the bolt connection portion is greater than the design strength of the intermediate damper, so that the damping device is configured to prevent the bolt connection portion from being deformed, yielded or destroyed prior to deformation or yielding or destruction of the intermediate damper. delete delete According to claim 1,
In order to reinforce tearing due to stress concentration in the bolt connection portion, the bolt uses a spring bolt,
The spring bolt is a vibration damping device characterized in that it is fixed to the prestressing pressure in advance so as to be able to serve as a buffering force with the elastic force of the body and separated by the elastic force when the pressure is released. According to claim 1,
Separate buffer materials may be installed at the predetermined intervals between the upper steel sheet wall and the lower steel sheet wall,
The damping device, characterized in that the cushioning material is formed of rubber. According to claim 1,
The damping device is installed at a point where the bending stress of the structure is maximized to increase the bending strength in the longitudinal direction of the structure. The method of claim 5,
A damping device characterized in that the intermediate damper is formed of an upper steel plate and a lower steel plate. The method of claim 7,
The damping device according to claim 1, wherein the upper and lower steel plates of the intermediate damper are spaced apart at predetermined intervals, and a separate cushioning material can be installed at predetermined intervals between the upper and lower steel plates of the intermediate damper. As a damping device installed in the vertical direction to the guard beam in the wall of the building consisting of a guard beam between the left and right pillars and the two pillars,
The damping device includes an upper steel plate wall, a lower steel plate wall and an intermediate damper,
The upper steel sheet wall and the lower steel sheet wall are installed facing each other in a space between the two pillars of the wall and the guard beam with the intermediate damper therebetween,
The upper steel sheet wall and the lower steel sheet wall are each formed of a structure of a double steel sheet composed of two steel sheets spaced at a predetermined interval, and are formed in a structure in which the intermediate damper can be inserted between predetermined intervals of the double steel sheet. ,
Separate buffer materials may be installed at the predetermined intervals between the upper steel sheet wall and the lower steel sheet wall,
The cushioning material is formed of rubber,
Separate joints between the buffer material of the upper steel plate wall and the lower steel plate wall and between the upper steel plate and the lower steel plate are formed, and the bonding portion is a bonding surface joined to the buffer material and a bonding surface joined to the upper steel plate and the lower steel sheet A vibration damping device which is formed separately from each other and uses different adhesives. As a damping device installed in the vertical direction to the guard beam in the wall of the building consisting of a guard beam between the left and right pillars and the two pillars,
The damping device includes an upper steel plate wall, a lower steel plate wall and an intermediate damper,
The upper steel sheet wall and the lower steel sheet wall are installed facing each other in a space between the two pillars of the wall and the guard beam with the intermediate damper therebetween,
The upper steel sheet wall and the lower steel sheet wall are each formed of a structure of a double steel sheet composed of two steel sheets spaced at a predetermined interval, and are formed in a structure in which the intermediate damper can be inserted between predetermined intervals of the double steel sheet. ,
Separate buffer materials may be installed at the predetermined intervals between the upper steel sheet wall and the lower steel sheet wall,
The cushioning material is formed of rubber,
The intermediate damper is formed of an upper steel plate and a lower steel plate,
The upper and lower steel plates of the intermediate damper are spaced apart at predetermined intervals, and a separate buffer material may be installed at predetermined intervals between the upper and lower steel plates of the intermediate damper,
Separate joints between the upper steel plate wall and the lower steel plate wall and each of the buffer material of the intermediate damper and the upper steel plate and the lower steel plate are formed, and the bonding portion is formed on the bonding surface and the upper steel plate and the lower steel plate bonded to the buffer material. A damping device characterized in that bonding surfaces to be joined are formed separately from each other, and different adhesives are used.

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